Jean-Jacques is a playful and interactive object for the diffusion and the contemplation of sound paintings of Brussels and his residents. Jean-Jacques is an enigmatic objet which brings the sound on a pedestal. It is use to propagate the sounds recordings from the data base of the BNA-BBOT organization. (Association focuses, since 1999, on the memory of the city), it’s random principe converts it’s environmental space into a sound museum. Winner Competitive exam design object BNA/BBOT.